Mai Ko Kashiwa is pinned down by Sho, her son's friend, who tells her, "Let me comfort you." Conflicted by his words, she trembles with uncontrollable excitement. Accepting her son's friend goes against her role as a mother, and she knows it. Yet her marriage has long become hollow, her daily life filled only with masturbation, leaving her desires pushed to the brink. Should she uphold her duties as a wife and mother, or surrender to her instincts and release her emotions? As the young man's passionate touch overwhelms her, Mai Ko's heart wavers, forced to make a choice.